以3,5-二硝基吡唑(DNP)为原料,经中和、N-胺化、氧化偶联等反应合成了一种含N,N-偶氮结构的富氮、多硝基含能化合物——1,1′-偶氮双(3,5-二硝基吡唑)(ABDNP),采用红外、核磁(1 H NMR,13C NMR)、质谱及元素分析表征了该化合物的结构;考...以3,5-二硝基吡唑(DNP)为原料,经中和、N-胺化、氧化偶联等反应合成了一种含N,N-偶氮结构的富氮、多硝基含能化合物——1,1′-偶氮双(3,5-二硝基吡唑)(ABDNP),采用红外、核磁(1 H NMR,13C NMR)、质谱及元素分析表征了该化合物的结构;考察了不同氧化剂体系对偶联反应的影响;并计算了化合物ABDNP的物化及爆轰性能。结果表明,使用次氯酸叔丁酯作为氧化剂最好,ABDNP收率为43.5%;其密度为1.94g·cm-3,爆速为9309.0m·s-1,爆压为42.2GPa,优于RDX。展开更多
Simple, selective and sensitive spectrophotometric method has been developed for the determination of Azacitidine in pharmaceutical formulations and blood with MBTH (3-methyl-2-benzothiazolone hydrazone hydrochloride)...Simple, selective and sensitive spectrophotometric method has been developed for the determination of Azacitidine in pharmaceutical formulations and blood with MBTH (3-methyl-2-benzothiazolone hydrazone hydrochloride) reagent, at PH-4.0 which is extractable at 620 nm. Beer’s law is obeying in the concentration ranges 10 - 35 μg·ml-1 for formulations and 4 - 24 μg·ml-1 for blood sample. %R.S.D was found to be 0.0240%, 0.0610 and Recovery 99.82% 99.24% respectively. The method was completely validated and proven to be rugged. The interferences of the other ingredients and excipients were not observed. The repeatability and the performance of the proven method were conventional by point and interior proposition and through recovery studies.展开更多
文摘以3,5-二硝基吡唑(DNP)为原料,经中和、N-胺化、氧化偶联等反应合成了一种含N,N-偶氮结构的富氮、多硝基含能化合物——1,1′-偶氮双(3,5-二硝基吡唑)(ABDNP),采用红外、核磁(1 H NMR,13C NMR)、质谱及元素分析表征了该化合物的结构;考察了不同氧化剂体系对偶联反应的影响;并计算了化合物ABDNP的物化及爆轰性能。结果表明,使用次氯酸叔丁酯作为氧化剂最好,ABDNP收率为43.5%;其密度为1.94g·cm-3,爆速为9309.0m·s-1,爆压为42.2GPa,优于RDX。
文摘Simple, selective and sensitive spectrophotometric method has been developed for the determination of Azacitidine in pharmaceutical formulations and blood with MBTH (3-methyl-2-benzothiazolone hydrazone hydrochloride) reagent, at PH-4.0 which is extractable at 620 nm. Beer’s law is obeying in the concentration ranges 10 - 35 μg·ml-1 for formulations and 4 - 24 μg·ml-1 for blood sample. %R.S.D was found to be 0.0240%, 0.0610 and Recovery 99.82% 99.24% respectively. The method was completely validated and proven to be rugged. The interferences of the other ingredients and excipients were not observed. The repeatability and the performance of the proven method were conventional by point and interior proposition and through recovery studies.
